Esmaeil Hajinasrollah

*,Professor of General Surgery Shahid Behshti University of Medical Science Loghman Medical Center **Assistant Professor of General Surgery Shahid Behshti University of Medical Science Loghman Medical Center ***Resident of General Surgery Shahid Behshti University of Medical Science Loghman Medical Center ****Intern of General Surgery Shahid Behshti University of Medical Science Loghman Medical Center Correspondence: Dr Esmaeil Hajinasrollah Professor of Surgery Shahid Behshti University Loghman Medical Center Tehran, Iran Loghman Medical Center Kamali Street 13334 Tehran, Iran E-mail: [email protected]